At the end of the last year, “Sumy NPO” PJSC shipped a lion’s share of equipment for a gas drying unit (GDU) within the scope of a contract with the German company Ingenieurbüro R. Großmann GmbH & Co. KG (IBG). Now, the manufacture of truly monumental equipment promising to be the real gem of the future GDU – triethyleneglycol (TEG) regeneration packages, – is coming to a close. When assembled, each of the packages reaches up for 19.5 meters, and weighs 106 tons!

The production department notes that such packages are not only among the largest in the SNPO production line, but also very complex from a technological point of view. They are also described as “remarkable” by Roman Lutsenko, the Chief Process Equipment Specialist who supervises this project on behalf of SDB.

“TEG regeneration package is considered a key element of the gas drying unit system. Its function is vaporization of moisture from glycol, which it absorbs during absorption process. As a result, after the completion of all the required stages, the customer will receive high-quality TEG with the concentration of up to 99.5%. This equipment complex is also highly efficient and versatile, designed for operation within the range of 10070 – 20530 kg/h”, – states the specialist.
These values are ensured due to the effective cooperation of a number of units: flash drum, regeneration column, buffer vessel, stripping column and other accompanying systems. This greatness is created in Workshop No.4.

Andrey Demin, the head of this subdivision, states that the manufacture of TEG regeneration packages is not new for his employees, but such large-scale units have never been made here before.

“All our brigades are involved in the implementation of the project. Everyone has vital work to do. And now, after the check assembly of the complex, the sheer scope of this collaboration becomes apparent, – states Andrey Grigorievich. – It is a four-levels structure, the first level of which is a buffer vessel, followed by a special spaced, stripping column, a vaporizer on top of it, and the glycol regeneration column topping the whole piece. All of these are furnished with the necessary piping, valves and instrumentation”.

The head of the Workshop No.4 also notes that each apparatus also has its own technological secrets. For example, a U-type heat exchanger weighing over 25 tons and a desorption gas coil are installed in the buffer vessel, a frying tube with an integrated gas burner is located in the vaporizer – this is not an easy thing to produce. The regeneration column with its exclusive internal structure also requires high qualification level of the staff.

Andrey Demin also adds that the last, but not least, stage is still ahead. “After the packages are checked for connectivity, the pieces will be shot-blasted, primed, painted and prepared for shipment. We expect to finish all of this this month”, – states the specialist.

TEG regeneration packages will be shipped out in structural modules. Each will require 15 shipping packages for the delivery to the site. All together, the complexes will take up 16 railway platforms.

As noted by Vladimir Andriienko, the head of the Sales Department division, a regenerated triethyleneglycol pumps package also needs to be shipped along with this equipment. In general, within the scope of furnishing the gas drying unit subject to works by the IBG company, Sumy machine-builders have manufactured and shipped to the customer a batch of vessels, including reflux, emergency drain, and fresh TEG storage units. The destination point also received a number of packages, namely: absorbers, degasser, filters and anti-foam dosing package.